Compilare: main.cpp: In function 'int main()': main.cpp:22:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rover.in", "r", stdin); ^ main.cpp:23:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rover.out", "w", stdout); ^ main.cpp:24:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &P, &N); ^ main.cpp:25:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] if(P==1)scanf("%d", &G); ^ main.cpp:26:69: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] for(i=1; i<=N; ++i) for(j=1; j<=N; ++j) {scanf("%d", &Map[i][j]); if(P==1) Cover[i][j]=Inf;} ^