Submission #1084720

#	Time	Username	Problem	Language	Result	Execution time	Memory
1084720		KasymK	Bridges (APIO19_bridges)	C++17	16 / 100	862 ms	3468 KiB

bridges

#include "bits/stdc++.h"
using namespace std;
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
#define ll long long
#define pb push_back
#define pii pair<int, int>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define tr(i, c) for(auto i = c.begin(); i != c.end(); ++i)
#define wr puts("----------------")
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
const int N = 5e4+5;
int v[N];

int main(){
    // freopen("file.txt", "r", stdin);
    int n, m;
    scanf("%d%d", &n, &m);
    for(int i = 1; i <= m; ++i){
        int a, b, x;
        scanf("%d%d%d", &a, &b, &x);
        v[i]=x;
    }
    int q;
    scanf("%d", &q);
    while(q--){
        int op;
        scanf("%d", &op);
        if(op == 1){
            int b, r;
            scanf("%d%d", &b, &r);
            v[b] = r;
            continue;
        }
        int s, w;
        scanf("%d%d", &s, &w);
        int ans = 1, ans1 = m+1;
        for(int i = s-1; i >= 1; --i)
            if(v[i] < w){
                ans = i+1;
                break;
            }
        for(int i = s; i <= m; ++i)
            if(v[i] < w){
                ans1 = i;
                break;
            }
        int answer = ans1-ans+1;
        printf("%d\n", answer);
    }
    return 0;
}

Compilation message (stderr)

bridges.cpp: In function 'int main()':
bridges.cpp:21:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |     scanf("%d%d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~
bridges.cpp:24:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |         scanf("%d%d%d", &a, &b, &x);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~
bridges.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |     scanf("%d", &q);
      |     ~~~~~^~~~~~~~~~
bridges.cpp:31:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |         scanf("%d", &op);
      |         ~~~~~^~~~~~~~~~~
bridges.cpp:34:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |             scanf("%d%d", &b, &r);
      |             ~~~~~^~~~~~~~~~~~~~~~
bridges.cpp:39:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |         scanf("%d%d", &s, &w);
      |         ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 0 / 13
• Subtask 2: 16 / 16
• Subtask 3: 0 / 17
• Subtask 4: 0 / 14
• Subtask 5: 0 / 13
• Subtask 6: 0 / 27