Submission #836804

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Source Code Expand

#include <bits/stdc++.h>
#define SZ(X) ((int)(X).size())
#define ALL(X) (X).begin(), (X).end()
#define REP(I, N) for (int I = 0; I < (N); ++I)
#define REPP(I, A, B) for (int I = (A); I < (B); ++I)
#define RI(X) scanf("%d", &(X))
#define RII(X, Y) scanf("%d%d", &(X), &(Y))
#define RIII(X, Y, Z) scanf("%d%d%d", &(X), &(Y), &(Z))
#define DRI(X) int (X); scanf("%d", &X)
#define DRII(X, Y) int X, Y; scanf("%d%d", &X, &Y)
#define DRIII(X, Y, Z) int X, Y, Z; scanf("%d%d%d", &X, &Y, &Z)
#define RS(X) scanf("%s", (X))
#define CASET int ___T, case_n = 1; scanf("%d ", &___T); while (___T-- > 0)
#define MP make_pair
#define PB push_back
#define MS0(X) memset((X), 0, sizeof((X)))
#define MS1(X) memset((X), -1, sizeof((X)))
#define LEN(X) strlen(X)
#define PII pair<int,int>
#define VI vector<int>
#define VPII vector<pair<int,int> >
#define PLL pair<long long,long long>
#define VPLL vector<pair<long long,long long> >
#define F first
#define S second
typedef long long LL;
using namespace std;
const int MOD = 1e9+7;
const int SIZE = 401;
LL p[SIZE][SIZE],sum_p[SIZE][SIZE];
LL dp[SIZE][SIZE];
int A[SIZE],B[SIZE];
void ADD(LL& x,LL v){
    x=(x+v)%MOD;
    if(x<0)x+=MOD;
}
int main(){
    REPP(i,1,SIZE){
        p[i][0]=1;
        sum_p[i][0]=sum_p[i-1][0]+1;
        REPP(j,1,SIZE){
            p[i][j]=p[i][j-1]*i%MOD;
            sum_p[i][j]=(sum_p[i-1][j]+p[i][j])%MOD;
        }
    }
    DRII(N,C);
    REP(i,N)RI(A[i]);
    REP(i,N)RI(B[i]);
    dp[0][0]=1;
    REP(i,N){
        REP(j,C+1){
            if(!dp[i][j])continue;
            for(int k=0;j+k<=C;k++){
                ADD(dp[i+1][j+k],dp[i][j]*(sum_p[B[i]][k]-sum_p[A[i]-1][k]));
            }
        }
    }
    cout<<dp[N][C]<<endl;
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:46:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     DRII(N,C);
              ^
./Main.cpp:47:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     REP(i,N)RI(A[i]);
                     ^
./Main.cpp:48:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     REP(i,N)RI(B[i]);
                     ^

Judge Result