Submission #68764617

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int maxn=(1e6)+10;
int n,q;
int a[maxn],b[maxn];
ll ans;
void add(int x,int y) {
    ans+=min(a[x],b[x])*y;
}
int main() {
    scanf("%d %d",&n,&q);
    for (int i=1;i<=n;i++) scanf("%d",&a[i]);
    for (int i=1;i<=n;i++) scanf("%d",&b[i]),add(i,1);
    while (q--) {
        int x; char s[5];
        scanf("%s %d",s,&x);
        add(x,-1);
        if (s[0]=='A') scanf("%d",&a[x]);
        else scanf("%d",&b[x]);
        add(x,1);
        printf("%lld\n",ans);
    }
    return 0;
}

Submission Info

Compile Error

Main.cpp: In function ‘int main()’:
Main.cpp:12:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   12 |     scanf("%d %d",&n,&q);
      |     ~~~~~^~~~~~~~~~~~~~~
Main.cpp:13:33: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   13 |     for (int i=1;i<=n;i++) scanf("%d",&a[i]);
      |                            ~~~~~^~~~~~~~~~~~
Main.cpp:14:33: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   14 |     for (int i=1;i<=n;i++) scanf("%d",&b[i]),add(i,1);
      |                            ~~~~~^~~~~~~~~~~~
Main.cpp:17:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   17 |         scanf("%s %d",s,&x);
      |         ~~~~~^~~~~~~~~~~~~~
Main.cpp:19:29: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   19 |         if (s[0]=='A') scanf("%d",&a[x]);
      |                        ~~~~~^~~~~~~~~~~~
Main.cpp:20:19: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   20 |         else scanf("%d",&b[x]);
      |              ~~~~~^~~~~~~~~~~~

Judge Result