Submission #68562034

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Source Code Expand

#include <stdio.h>
#include <string.h>

int main(){
    int N, M;
    scanf("%d %d", &N, &M);

    char S[N+1];
    scanf("%s", S);
    // printf("OK\n");
    char T[N+1];
    scanf("%s", T);
    // printf("OK2\n");

    int L[M], R[M];
    for(int i = 0; i < M; i++){
        scanf("%d %d", &L[i], &R[i]);
    }
    // char tmp[N];
    // for(int i = 0; i < M; i++){
    //     // printf("ここまでOK\n");
    //     int diff = R[i] - L[i] + 1;
    //     // printf("ここまでOK2\n");
    //     // printf("diff %d", diff);
    //     for(int j = 0; j < diff; j++){
    //         tmp[j] = S[L[i]-1 + j];
    //         S[L[i]-1 + j] = T[L[i]-1 + j];
    //         T[L[i]-1 + j] = tmp[j];
    //     }
    //     // printf("%s\n", S);
    // }
    // printf("OK?\n");

    int not[N+1];
    for(int i = 0; i <= N; i++){
        not[i] = 0;
    }
    for(int i = 0; i < M; i++){
        not[L[i]-1] += 1;
        not[R[i]] -= 1;
    }

    // for(int i = 0; i < N; i++){
    //     printf("%d ", not[i]);
    // }
    // putchar('\n');

    int cur = 0;
    for(int i = 0; i < N; i++){
        cur += not[i];
        if(cur % 2 == 0){
            printf("%c", S[i]);
        }else{
            printf("%c", T[i]);
        }
    }

    printf("\n");
    return 0;
}

Submission Info

Compile Error

Main.c: In function ‘main’:
Main.c:6:5: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    6 |     scanf("%d %d", &N, &M);
      |     ^~~~~~~~~~~~~~~~~~~~~~
Main.c:9:5: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    9 |     scanf("%s", S);
      |     ^~~~~~~~~~~~~~
Main.c:12:5: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   12 |     scanf("%s", T);
      |     ^~~~~~~~~~~~~~
Main.c:17:9: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   17 |         scanf("%d %d", &L[i], &R[i]);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Judge Result