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#include <bits/stdc++.h> int main() { int p, q, n, i, j, count = 0; scanf("%d", &n); char room[n][2]; for (i = 0; i < n; i++) { for (j = 0; j < 2; j++) { scanf("%d", &room[i][j]); } } for (i = 0; i < n; i++) { if (room[i][1] - room[i][0] > 1) { count++; } } printf("%d", count); }
#include <bits/stdc++.h> int main() { int n, p, q, i, c = 0; scanf("%d", &n); for (i = 1; i <= n; i++) { scanf("%d %d", &p, &q); if (q - p >= 2) { c++; } else ; } printf("%d\n", c); return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, p, q, s, r = 0; cin >> n; for (int i = 0; i < n; i++) { cin >> p >> q; if ((q - p) >= 2) { r++; } } cout << r << "\n"; return 0; }
#include <bits/stdc++.h> using namespace std; int arr[28]; int main() { int n, counter = 0; cin >> n; int *arr = new int[2 * n]; for (int i = 0; i < 2 * n; i += 2) { cin >> arr[i] >> arr[i + 1]; if (arr[i + 1] - arr[i] >= 2) counter++; } cout << counter; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int count = 0; int i, p, q; for (i = 0; i < n; i++) { cin >> p >> q; if (q - p >= 2) count++; } cout << count; }
#include <bits/stdc++.h> using namespace std; int main() { int count = 0, a, b, n; cin >> n; for (auto i = 0; i < n; i++) { cin >> a >> b; if (b - a >= 2) { count++; } } cout << count << endl; }
#include <bits/stdc++.h> using namespace std; int main() { int n, j, k, count = 0, count1 = 0, sum = 0; cin >> n; while (n--) { cin >> j >> k; sum = k - j; if (sum <= 1) { count = 0; } else if (sum > 1) { count1++; count1 = count1++; } } cout << count + count1 << endl; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int res = 0; for (int i = 0; i < n; i++) { int a, b; cin >> a >> b; if (b - a >= 2) res++; } cout << res; return 0; }
#include <bits/stdc++.h> using namespace std; void fast() { std::ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL); } void file() {} int gcd(long long a, long long b) { return b == 0 ? a : gcd(b, a % b); } int main() { fast(); file(); short n, pi, qi, num = 0; cin >> n; for (int i = n; i != 0; i--) { cin >> pi >> qi; if (qi == pi || qi - pi == 1) num++; } cout << n - num << endl; }
#include <bits/stdc++.h> int main() { int n, i, c = 0; scanf("%d", &n); int p[n], q[n]; for (i = 0; i < n; i++) { scanf("%d%d", &p[i], &q[i]); } for (i = 0; i < n; i++) { if (p[i] < q[i] && (q[i] - p[i]) > 1) { c++; } } printf("%d", c); }
#include <bits/stdc++.h> int main() { int n, i, a[202], count = 0; scanf("%d", &n); for (i = 0; i < 2 * n; i++) scanf("%d", &a[i]); for (i = 0; i < 2 * n; i++) { if (a[i + 1] - a[i] >= 2) { count++; i++; } else i++; } printf("%d", count); return 0; }
#include <bits/stdc++.h> int main() { int n, p, q, check; std::cin >> n; int count = 0; while (n--) { std::cin >> p >> q; check = (q - p); if (check >= 2) { count++; } } std::cout << count << "\n"; }
#include <bits/stdc++.h> using namespace std; int main() { int n, p[100], q[100], c = 0; cin >> n; for (int i = 0; i < n; i++) { cin >> p[i] >> q[i]; if (p[i] < q[i] && q[i] - p[i] >= 2) c++; } cout << c; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int a; cin >> a; int ar[a * 2]; int aa = 0; for (int AsAlwaysI = 0; AsAlwaysI < a * 2; AsAlwaysI++) { int d; cin >> d; ar[AsAlwaysI] = d; } for (int AsAlwaysI = 0; AsAlwaysI < a * 2; AsAlwaysI++) { AsAlwaysI++; if (ar[AsAlwaysI] - ar[AsAlwaysI - 1] >= 2) aa++; } cout << endl << aa; }
#include <bits/stdc++.h> using namespace std; int main() { int c = 0, n, a, b, i; cin >> n; for (i = 0; i < n; i++) { cin >> a >> b; if (b - a >= 2) c++; } cout << c; }
#include <bits/stdc++.h> using namespace std; int main() { int n, x, y, arr[100], count = 0; cin >> n; int i = 0; for (i; i < n; i++) { cin >> x >> y; if (y - x >= 2) count++; } cout << count << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, count = 0, i; cin >> n; int p[n], q[n]; i = 0; while (n--) { cin >> p[i] >> q[i]; if (q[i] - p[i] >= 2) count++; } cout << count << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int count = 0; for (int i = 0; i < n; i++) { int c, d; cin >> c >> d; if (d - c > 1) { count++; } } cout << count << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main(void) { int n, x, y, res = 0; cin >> n; int i; for (i = 0; i < n; i++) { cin >> x >> y; if (y >= (x + 2)) res++; } cout << res << "\n"; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, p, q, x = 0; cin >> n; for (int i = 0; i < n; i++) { cin >> p >> q; if (q - p >= 2) x++; } cout << x; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, count = 0; cin >> n; while (n--) { int a, b; cin >> a >> b; if ((b - a) >= 2) { count++; } } cout << count << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int cmpLToS(int a, int b) { return a > b; } int cmpSToL(int a, int b) { return b > a; } void CFNow() { int n; cin >> n; int nCount = 0; while (n--) { int p, q; cin >> p >> q; if (q - p >= 2) nCount++; } cout << nCount << endl; } int main() { CFNow(); return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, a, b, count = 0; cin >> n; for (int i = 0; i < n; i++) { cin >> a >> b; if (b - a >= 2) { count++; } } cout << count; }
#include <bits/stdc++.h> int gcd(int a, int b) { return !b ? a : gcd(b, a % b); } const double pi = acos(-1.0); const long long mod = 1e9 + 7; using namespace std; int ok = 0; char s[105]; int a[105], b[105]; int main() { int N; scanf("%d", &N); int t = 0; for (int i = 1; i <= N; i++) { scanf("%d %d", &a[i], &b[i]); if (b[i] - a[i] >= 2) t++; } printf("%d\n", t); return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int x; cin >> x; int sum = 0; for (int i = 1; i <= x; i++) { int a; int b; cin >> a >> b; if ((b - a) >= 2) { sum++; } } cout << sum; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, i, p, q, total; scanf("%d", &n); for (i = 0, total = 0; i < n; i++) { scanf("%d%d", &p, &q); if (q - p >= 2) total++; } printf("%d", total); }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int a, b; int count = 0; for (int i = 0; i < n; i++) { cin >> a >> b; if (b - a >= 2) { count++; } } cout << count; }
#include <bits/stdc++.h> int main() { int n; int p, q, i; scanf("%d", &n); int c = 0; for (i = 1; i <= n; i++) { scanf("%d%d", &p, &q); if ((q - p) >= 2) c++; } printf("%d", c); return 0; }
#include <bits/stdc++.h> using namespace std; const long long N = 1e5 + 5; long long arr[100][2]; int32_t main() { long long n; cin >> n; for (long long j = 1; j <= n; j++) { for (long long i = 0; i <= 1; i++) { cin >> arr[j][i]; } } long long left = 0; for (long long i = 1; i <= n; i++) { if ((arr[i][1] - arr[i][0]) >= 2) left++; } cout << left; return 0; }
#include <bits/stdc++.h> using namespace std; int gcd(int a, int b) { if (b == 0) return a; return gcd(b, a % b); } int solve() { int n, k = 0, p, q, i, j; cin >> n; for (i = 0; i < n; i++) { cin >> p >> q; if (q - p > 1) k++; } cout << k; return 0; } int main() { int t; solve(); return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, a, b, count = 0; ; cin >> n; for (int i = 0; i < n; i++) { cin >> a >> b; if ((b - a) >= 2) { count++; } } cout << count; return 0; }
#include <bits/stdc++.h> int main() { int a, b, n, c, i, count = 0, t, y, m; scanf("%d", &m); for (i = 1; i <= m; i++) { scanf("%d %d", &t, &y); if ((y - t) >= 2) { count++; } } printf("%d\n", count); return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n; int count = 0; cin >> n; while (n--) { int a, b; cin >> a >> b; if (b - a > 1) count++; } cout << count << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(nullptr); int n = 0; int p = 0, q = 0; cin >> n; int cnt = 0; while (n--) { cin >> p >> q; if (q - p >= 2) { cnt++; } } cout << cnt; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, c = 0, p, q; cin >> n; while (n--) { cin >> p >> q; if (q - p > 1) c++; } cout << c; }
#include <bits/stdc++.h> using namespace std; int main() { int x; int y[100]; int z[100]; cin >> x; int a{0}; for (int i{0}; i < x; ++i) { cin >> y[i] >> z[i]; if (z[i] - y[i] >= 2) ++a; } cout << a; }
#include <bits/stdc++.h> using namespace std; int cnt; int main() { int n, a, b; cin >> n; for (int i = 0; i < n; i++) { cin >> a >> b; if (b - a > 1) cnt++; } cout << cnt; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int count = 0; for (int i = 0; i < n; i++) { int a, b; cin >> a >> b; if (b - a >= 2) count++; } cout << count << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int size, n, m, result = 0; cin >> size; for (long long i = 0; i < size; i++) { cin >> n >> m; if (m - n >= 2) result++; } cout << result << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, p, q, flag = 0; cin >> n; for (int i = 0; i < n; i++) { cin >> p >> q; if (p == q) { continue; } else if (p <= q - 2) { flag++; } } cout << flag << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int counter = 0; for (int i = 0; i < n; ++i) { int p, q; cin >> p >> q; if (q - p >= 2) { ++counter; } } cout << counter; return 0; }
#include <bits/stdc++.h> int main() { int n; scanf("%d", &n); int a[n][2]; for (int i = 0; i < n; i++) { for (int j = 0; j < 2; j++) { scanf("%d", &a[i][j]); } } int c = 0, k = 0, m = 0; for (int i = 0; i < n; i++) { if (a[i][0] == a[i][1]) c++; else if (a[i][0] == a[i][1] - 1) m++; else k++; } if (c == n || m == n) printf("0"); else printf("%d", k); return 0; }
#include <bits/stdc++.h> using namespace std; template <typename T> T mabs(const T &a) { return a < 0 ? -a : a; } void run() { int n; cin >> n; int res = 0; for (int i = (0), ei = (n); i < ei; i++) { int p, q; cin >> p >> q; res += q - p >= 2; } cout << res << endl; } int main() { run(); return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int ans = 0; int p, q; for (int i = 0; i < n; i++) { cin >> p >> q; if (p <= q - 2) { ans++; } } cout << ans << endl; }
#include <bits/stdc++.h> int main() { int n, p, i, q, s = 0; scanf("%d", &n); for (i = 0; i < n; i++) { scanf("%d %d", &p, &q); if (q >= p + 2) s = s + 1; } printf("%d", s); return 0; }
#include <bits/stdc++.h> int main() { int n, p, q; int ans = 0; std ::cin >> n; for (int i = 0; i < n; i++) { std ::cin >> p >> q; if (q - p > 1) ans++; } std::cout << ans; }
#include <bits/stdc++.h> int main() { int n, a[100], b[100], k = 0; scanf("%d", &n); for (int i = 0; i < n; i++) { scanf("%d %d", &a[i], &b[i]); } for (int i = 0; i < n; i++) { if (a[i] < b[i] && (abs(a[i] - b[i]) > 1)) { k = k + 1; } } printf("%d", k); return 0; }
#include <bits/stdc++.h> #pragma warning(disable : 4996) using namespace std; int main() { long long n, count = 0, p, q; while (cin >> n) { while (n--) { cin >> p >> q; if ((q - p) >= 2) count++; } cout << count << endl; } return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int c = 0; while (n--) { int a, b; cin >> a >> b; if (b - a >= 2) { c++; } } cout << c; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, p, q; cin >> n; int N = 0; while (n--) { cin >> p >> q; if ((q - p) >= 2) { N++; } } cout << N; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n; while (cin >> n) { int sum = 0; for (int i = 1; i <= n; i++) { int a, b; cin >> a >> b; if (b - a >= 2) sum++; } cout << sum << endl; } return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, x, y; cin >> n; int c = 0; for (int i = 0; i < n; i++) { cin >> x >> y; if (y - x >= 2) { c++; } } cout << c << endl; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int count = 0; int a, b; while (n--) { cin >> a >> b; if (b - a >= 2) count++; } cout << count << endl; }
#include <bits/stdc++.h> int main() { int n, p, q, i, count = 0; scanf("%d", &n); for (i = 0; i < n; i++) { scanf("%d %d", &p, &q); if (p < q && q - p >= 2) { count++; } } printf("%d\n", count); }
#include <bits/stdc++.h> int main() { int n, p, q, c = 0, i; scanf("%d", &n); for (i = 0; i < n; i++) { scanf("%d %d", &p, &q); if (q - p >= 2) { c++; } } printf("%d", c); }
#include <bits/stdc++.h> using namespace std; int n, p, q, av; int main() { scanf("%d", &n); for (int i = 0; i < n; ++i) { scanf("%d%d", &p, &q); if (p < (q - 1)) av++; } printf("%d", av); }
#include <bits/stdc++.h> int main() { int a, b, i, n, x = 0; scanf("%d", &n); for (i = 0; i < n; i++) { scanf("%d %d", &a, &b); if (a <= (b - 2)) { x++; } } printf("%d", x); }
#include <bits/stdc++.h> using namespace std; int n, p, q, kol; int main() { cin >> n; for (int i = 0; i < n; ++i) { cin >> p >> q; if (q - p >= 2) ++kol; } cout << kol; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int p[n]; int q[n]; int i; for (i = 0; i < n; i++) { cin >> p[i]; cin >> q[i]; } int cnt = 0; for (i = 0; i < n; i++) { if (abs(p[i] - q[i]) >= 2) cnt++; } cout << cnt; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, p, q, count = 0; cin >> n; while (n--) { cin >> p >> q; if (q - p >= 2) count++; } cout << count << '\n'; ; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int t, a, b; int add = 0; cin >> t; while (t--) { cin >> a >> b; if (b - a >= 2) { add++; } } cout << add << endl; }
#include <bits/stdc++.h> using namespace std; int main() { int n, i, m, l = 0, k = 0; cin >> n; int A[n], B[n]; for (i = 0; i < n; i++) { cin >> A[i] >> B[i]; if (B[i] - A[i] >= 2) l++; } printf("%d", l); return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, count = 0; cin >> n; while (n--) { int a, b; cin >> a >> b; if (b - a >= 2) count += 1; } cout << count; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int a, b, n, x; cin >> n; x = 0; for (int i = 1; i <= n; i++) { cin >> a >> b; if ((b - a) >= 2) x += 1; } cout << x << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int room[105]; int n, i, p, q; int ans = 0; scanf("%d", &n); for (i = 1; i <= n; i++) { scanf("%d%d", &p, &q); if (q - p >= 2) ans++; } printf("%d\n", ans); return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int a, b[2], count = 0; cin >> a; for (int i = 0; i < a; i++) { cin >> b[0] >> b[1]; if (b[1] - b[0] >= 2) count += 1; } cout << count; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, a[100], b[100], i, c = 0; cin >> n; for (i = 0; i < n; i++) { cin >> a[i] >> b[i]; if ((b[i] - a[i]) >= 2) c++; } cout << c; }
#include <bits/stdc++.h> using namespace std; int main() { int n; scanf("%d", &n); int cc = 0; for (int i = 0; i < n; ++i) { int a, b; scanf("%d%d", &a, &b); if (b >= a + 2) ++cc; } printf("%d\n", cc); }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int count = 0, a, b; while (n--) { cin >> a >> b; if (b - a >= 2) { count++; } } cout << count; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(0); cin.tie(0); int n; cin >> n; int p, q; int count = 0; for (int i = 0; i < n; i++) { cin >> p >> q; if (q - p >= 2) count++; } cout << count; return 0; }
#include <bits/stdc++.h> using namespace std; struct student { int ac1; int ac2; int ac3; } ac[105]; int a[150]; int main() { int n, sum = 0, sum1 = 0, sum2 = 0, sum3 = 0; cin >> n; for (int i = 0; i < n; i++) { cin >> ac[i].ac1 >> ac[i].ac2; } for (int i = 0; i < n; i++) { if (ac[i].ac2 - ac[i].ac1 >= 2) { sum++; } } cout << sum << endl; return 0; }
#include <bits/stdc++.h> int main(void) { int n; scanf("%d", &n); int p, q, r = 0; for (int i = 0; i < n; ++i) { scanf("%d %d", &p, &q); if (q - p > 1) ++r; } printf("%d", r); return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, p, q, cont = 0; cin >> n; while (n--) { cin >> p >> q; if (p < q - 1) { cont++; } } cout << cont; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int counter = 0, a, b, n; cin >> n; for (int i = 0; i < n; i++) { cin >> a >> b; if (b > a) { if (b - a >= 2) counter++; } } cout << counter; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, r, c, ct = 0; cin >> n; for (int i = 0; i < n; i++) { cin >> r >> c; if (c - r >= 2) ct++; } cout << ct; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); ; int n, pi, qi, ans = 0; cin >> n; for (int i = 0; i < n; ++i) { cin >> pi >> qi; if (qi - pi > 1) ans++; } cout << ans << endl; }
#include <bits/stdc++.h> int main() { int n; scanf("%d", &n); int answer = 0; while (n--) { int p, q; scanf("%d %d", &p, &q); answer += (p + 2 <= q); } printf("%d\n", answer); return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, p, q, result = 0; cin >> n; while (n--) { cin >> p >> q; if (q - p >= 2) result++; } cout << result << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int count = 0; for (int i = 0; i < n; i++) { int a, b; cin >> a >> b; if (b - a >= 2) ++count; } cout << count; return 0; }
#include <bits/stdc++.h> int main() { int n, i, a, b, t = 0; scanf("%d", &n); for (i = 0; i < n; i++) { scanf("%d%d", &a, &b); if (b - a > 1) t++; } printf("%d", t); }
#include <bits/stdc++.h> using namespace std; int main() { int n, ca, a, ans = 0; cin >> n; while (n--) { cin >> a >> ca; if (ca - a >= 2) ans++; } cout << ans; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int x = 0, y = 0, counter = 0; for (int i = 0; i < n; i++) { cin >> x >> y; if (y >= x + 2) counter++; } cout << counter << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, res = 0; cin >> n; while (n--) { int a, b; cin >> a >> b; if (b - a >= 2) res++; } cout << res; }
#include <bits/stdc++.h> using namespace std; int main() { int m, n1, n2, n3 = 0, i; cin >> m; for (i = 0; i < m; i++) { cin >> n1 >> n2; if ((n2 - n1) >= 2) { n3++; } } cout << n3 << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int count = 0; for (int i = 0; i < n; i++) { int p, q; cin >> p >> q; if (q - p > 1) count++; } cout << count << endl; return 0; }
#include <bits/stdc++.h> using namespace std; const int inf = 1e9; const int N = 1e3 + 123; const long long inff = 1e18; int n, m, a[105], b[105]; int main() { cin >> n; for (int i = 1; i <= n; ++i) { cin >> a[i] >> b[i]; } for (int i = 1; i <= n; ++i) { if (b[i] - a[i] >= 2) m++; } cout << m; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, a, b; cin >> n; int count = 0; for (int i = 0; i < n; i++) { cin >> a >> b; if (b - a >= 2) count++; } cout << count << endl; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, k = 0; cin >> n; while (n--) { int x, y; cin >> x >> y; if ((x + 2) <= y) k++; else k = k; } cout << k; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int cnt = 0; while (n--) { int p, q; cin >> p >> q; if ((q - p) >= 2) cnt++; } cout << cnt << '\n'; }
#include <bits/stdc++.h> using namespace std; int main() { int n, a, b, c = 0; cin >> n; while (n) { cin >> a >> b; if (b > a + 1) c += 1; n--; } cout << c; }
#include <bits/stdc++.h> using namespace std; int main() { int n, i; cin >> n; int count = 0, a, b; for (i = 0; i < n; i++) { cin >> a >> b; if ((b - a) >= 2) count++; } cout << count; }
#include <bits/stdc++.h> using namespace std; signed main() { ios_base::sync_with_stdio(false); int n; cin >> n; int ans = 0; for (int i = (1); i <= (n); i++) { int p, q; cin >> p >> q; ans += q - p >= 2; } cout << ans << "\n"; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int a, b, n, sum = 0; cin >> n; int arr[n][2]; for (a = 0; a < n; a++) { for (b = 0; b < 2; b++) { cin >> arr[a][b]; } } for (a = 0; a < n; a++) { if (arr[a][1] - arr[a][0] >= 2) { sum = sum + 1; } } cout << sum; }
#include <bits/stdc++.h> using namespace std; int main() { int n, i, j, a[110][110], co = 0; cin >> n; for (i = 0; i < n; i++) for (j = 0; j < 2; j++) cin >> a[i][j]; for (i = 0; i < n; i++) for (j = 0; j < 2; j++) { if (a[i][j + 1] - a[i][j] >= 2) co++; } cout << co; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n, p, q, ra = 0; cin >> n; while (n--) { cin >> p >> q; if (q - p >= 2) ra++; } cout << ra; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int count = 0; for (int i = 0; i < n; i++) { int a, b; cin >> a >> b; if (abs(a - b) > 1) { count += 1; } } cout << count; }
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int count = 0; for (int i = 0; i < n; ++i) { int p, q; cin >> p >> q; if (q - p > 1) ++count; } cout << count << "\n"; }
#include <bits/stdc++.h> using namespace std; int main() { int N = 0, p = 0, q = 0; int k = 0; cin >> N; for (int i = 0; i < N; i++) { cin >> p >> q; if (q - p >= 2) k++; } cout << k; return 0; }
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(0); int n, p, q, ans = 0; cin >> n; while (n--) { cin >> p >> q; if ((q - p) >= 2) ans++; } cout << ans; return 0; }
#include <bits/stdc++.h> using namespace std; int mod = 1e9 + 7; long long mi = INT_MAX; long long ma = INT_MIN; long long int a[1002][1002]; bool comp(pair<long long int, long long int> &a, pair<long long int, long long int> &b) { return (a.second < b.second); } void solve() { int n; cin >> n; int a, b, c = 0; for (int i = 0; i < n; i++) { cin >> a >> b; if (abs(a - b) > 1) { c++; } } cout << c; } int main() { ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0); { int t; { solve(); cout << endl; } } return 0; }