Submission #3007301

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Source Code Expand

#include<iostream>
#include<cstdio>
#include<vector>

#define int long long

using namespace std;

const int p=1000000007;
int f[302][301][301],N,M,l,r,x,ans;
vector<pair<int,int>> vec[301];

main(){
	scanf("%lld%lld",&N,&M);for(int i=1;i<=M;++i)scanf("%lld%lld%lld",&l,&r,&x),vec[r].push_back(make_pair(l,x));
	for(int i=f[1][0][0]=1;i<=N;++i){
		for(pair<int,int> pr:vec[i])for(int j=0;j<i;++j)for(int k=0;k<=(j>0?j-1:j);++k)if(pr.second==1){if(pr.first<=j)f[i][j][k]=0;}else if(pr.second==2){if(pr.first<=k||j<pr.first)f[i][j][k]=0;}else if(k<pr.first)f[i][j][k]=0;
		for(int j=0;j<i;++j)for(int k=0;k<=(j>0?j-1:j);++k)(f[i+1][j][k]+=f[i][j][k])%=p,(f[i+1][i][k]+=f[i][j][k])%=p,(f[i+1][i][j]+=f[i][j][k])%=p;
	}for(int i=0;i<N;++i)for(int j=0;j<=(i>0?i-1:i);++j)(ans+=f[N][i][j])%=p;
	printf("%lld",ans*3%p);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:14:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld",&N,&M);for(int i=1;i<=M;++i)scanf("%lld%lld%lld",&l,&r,&x),vec[r].push_back(make_pair(l,x));
                         ^
./Main.cpp:14:110: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld",&N,&M);for(int i=1;i<=M;++i)scanf("%lld%lld%lld",&l,&r,&x),vec[r].push_back(make_pair(l,x));
                                                                                                              ^

Judge Result