Submission #73203

#	Time	Username	Problem	Language	Result	Execution time	Memory
73203		test	Judge Against Wrong Code (FXCUP3_judge)	C++14	49 / 100	1573 ms	172124 KiB

judge

#include<bits/stdc++.h>
using namespace std;

const int MN = 500010;

int X, D, C;
int data[MN], code[MN], cnt1[1 << 20], cnt2[1 << 20];

int cc1[1 << 20][20];
int dp1(int mask, int p) {
    if(p == X) return cnt1[mask]? mask : 0;
    int &ret = cc1[mask][p];
    if(ret != -1) return ret;

    ret = 0;
    if(mask & (1 << p)) {
        ret |= dp1(mask, p + 1);
        ret |= dp1(mask ^ (1 << p), p + 1);
    }
    else ret |= dp1(mask, p + 1);
    return ret;
}

int cc2[1 << 20][20];
int dp2(int mask, int p) {
    if(p == X) return cnt2[mask];
    int &ret = cc2[mask][p];
    if(ret != -1) return ret;

    ret = 0;
    if(mask & (1 << p)) {
        ret += dp2(mask, p + 1);
        ret += dp2(mask ^ (1 << p), p + 1);
    }
    else ret += dp2(mask, p + 1);
    return ret;
}

int ans[MN];

int main() {
    scanf("%d", &X);
    scanf("%d", &D);

    for(int i = 0; i < D; i++) {
        scanf("\n");
        for(int j = 0; j < X; j++) {
            char t; scanf("%c", &t);

            if(t == 'o') data[i] ^= (1 << j);
        }
        cnt1[ data[i] ]++;
    }

    scanf("%d", &C);

    for(int i = 0; i < C; i++) {
        scanf("\n");
        for(int j = 0; j < X; j++) {
            char t; scanf("%c", &t);

            if(t == 'x') code[i] ^= (1 << j);
        }
        cnt2[ code[i] ]++;
    }

    memset(cc1, -1, sizeof(cc1));
    memset(cc2, -1, sizeof(cc2));

    for(int i = 0; i < (1 << X); i++) {
        if(dp1(i, 0) == i) {
            ans[ C - dp2((1 << X) - 1 - i, 0) ] = 1;
        }
    }
    for(int i = 1; i <= C; i++) {
        if(ans[i]) printf("o");
        else printf("x");
    }
}

Compilation message (stderr)

judge.cpp: In function 'int main()':
judge.cpp:42:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &X);
     ~~~~~^~~~~~~~~~
judge.cpp:43:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &D);
     ~~~~~^~~~~~~~~~
judge.cpp:46:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("\n");
         ~~~~~^~~~~~
judge.cpp:48:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             char t; scanf("%c", &t);
                     ~~~~~^~~~~~~~~~
judge.cpp:55:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &C);
     ~~~~~^~~~~~~~~~
judge.cpp:58:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("\n");
         ~~~~~^~~~~~
judge.cpp:60:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             char t; scanf("%c", &t);
                     ~~~~~^~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 39 / 39
• Subtask 3: 0 / 51