Submission #3009843

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Source Code Expand

#include<iostream>
#include<cstdio>
#include<vector>
using namespace std;
 
#define mod 1000000007
int n,m,l,r,x,ans=0;
vector<pair<int,int> > v[305];
int f[305][305][305];
 
inline bool check(int r,int g,int b){
    int k=max(r,max(g,b));
    for(int i=0;i<v[k].size();i++){
        int cnt=0;
        int l=v[k][i].first,x=v[k][i].second;
        if(r>=l)cnt++;
        if(g>=l)cnt++;
        if(b>=l)cnt++;
        if(cnt!=x)return false;
    }
    return true;
}
 
inline void add(int &x,const int &y){
    x+=y;if(x>=mod)x-=mod;
}
 
int main(){
    scanf("%d%d",&n,&m);
    for(int i=1;i<=m;i++){
        scanf("%d%d%d",&l,&r,&x);
        v[r].push_back(make_pair(l,x));
    }
    f[0][0][0]=1;
    register int r,g,b;
    for(r=0;r<=n;r++)
    for(g=0;g<=n;g++)
    for(b=0;b<=n;b++){
        if(f[r][g][b]==0)continue;
        if(!check(r,g,b)){
            f[r][g][b]=0;
            continue;
        }
        int k=max(r,max(g,b));
        add(f[k+1][g][b],f[r][g][b]);
        add(f[r][k+1][b],f[r][g][b]);
        add(f[r][g][k+1],f[r][g][b]);
        if(k==n)add(ans,f[r][g][b]);
    }
    printf("%d",ans);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:29:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
                        ^
./Main.cpp:31:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d",&l,&r,&x);
                                 ^

Judge Result