Submission #59592695

Source Code Expand

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#include<bits/stdc++.h>
using namespace std;
const int N = 2e5+7;
typedef long long ll;
struct cell{
  int x,a;
  bool operator<(const cell &t) const{return x < t.x;}
}c[N];
int n,m;
ll r,res;
int main(){
  scanf("%d%d",&n,&m);
  for(int i = 1;i <= m;i++) scanf("%d",&c[i].x);
  for(int i = 1;i <= m;i++) scanf("%d",&c[i].a);
  sort(c+1,c+m+1);
  if(c[1].x != 1){
    printf("-1\n");
    return 0;
  }
  for(int i = 1;i <= m;i++){
    if(r < c[i].x-1){
 
 
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#include<bits/stdc++.h>
using namespace std;
const int N = 2e5+7;
typedef long long ll;
struct cell{
	int x,a;
	bool operator<(const cell &t) const{return x < t.x;}
}c[N];
int n,m;
ll r,res;
int main(){
	scanf("%d%d",&n,&m);
	for(int i = 1;i <= m;i++) scanf("%d",&c[i].x);
	for(int i = 1;i <= m;i++) scanf("%d",&c[i].a);
	sort(c+1,c+m+1);
	if(c[1].x != 1){
		printf("-1\n");
		return 0;
	}
	for(int i = 1;i <= m;i++){
		if(r < c[i].x-1){
			printf("-1\n");
			return 0;
		}
		res += (ll)(r+1-c[i].x+r+c[i].a-c[i].x)*c[i].a/2;
		r += c[i].a;
	}
	if(r == n) printf("%lld\n",res);
	else printf("-1\n");
	return 0;
}

Submission Info

Compile Error

Main.cpp: In function ‘int main()’:
Main.cpp:12:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   12 |         scanf("%d%d",&n,&m);
      |         ~~~~~^~~~~~~~~~~~~~
Main.cpp:13:40: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   13 |         for(int i = 1;i <= m;i++) scanf("%d",&c[i].x);
      |                                   ~~~~~^~~~~~~~~~~~~~
Main.cpp:14:40: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   14 |         for(int i = 1;i <= m;i++) scanf("%d",&c[i].a);
      |                                   ~~~~~^~~~~~~~~~~~~~

Judge Result