Compilare: main.cpp: In function 'int main()': main.cpp:21:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rfinv.in","r",stdin); ^ 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("rfinv.out","w",stdout); ^ main.cpp:23:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t); ^ main.cpp:26:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ main.cpp:30:61: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&muchii[i].first,&muchii[i].second); ^ main.cpp:35:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&r[i][j]); ^ main.cpp: In function 'void roy(int)': main.cpp:15:60: warning: array subscript is above array bounds [-Warray-bounds] a[k%2][i][j]=min(a[(k-1)%2][i][j],a[(k-1)%2][i][k]+a[(k-1)%2][k][j]); ~~~~~~~~~^ main.cpp:15:77: warning: array subscript is above array bounds [-Warray-bounds] a[k%2][i][j]=min(a[(k-1)%2][i][j],a[(k-1)%2][i][k]+a[(k-1)%2][k][j]); ~~~~~~~~~^ main.cpp:15:84: warning: array subscript is above array bounds [-Warray-bounds] a[k%2][i][j]=min(a[(k-1)%2][i][j],a[(k-1)%2][i][k]+a[(k-1)%2][k][j]); ^ main.cpp:15:22: warning: array subscript is above array bounds [-Warray-bounds] a[k%2][i][j]=min(a[(k-1)%2][i][j],a[(k-1)%2][i][k]+a[(k-1)%2][k][j]); ~~~~~^ main.cpp: In function 'int main()': main.cpp:34:20: warning: array subscript is above array bounds [-Warray-bounds] a[0][i][j]=0; ~~~^ main.cpp:38:56: warning: array subscript is above array bounds [-Warray-bounds] a[0][muchii[i].first][muchii[i].second]=a[0][muchii[i].second][muchii[i].first]=r[muchii[i].first][muchii[i].second]; ~~~^ main.cpp:38:16: warning: array subscript is above array bounds [-Warray-bounds] a[0][muchii[i].first][muchii[i].second]=a[0][muchii[i].second][muchii[i].first]=r[muchii[i].first][muchii[i].second]; ~~~^ main.cpp:41:32: warning: array subscript is above array bounds [-Warray-bounds] if(i!=j && !a[0][i][j]) ~~~^ main.cpp:42:24: warning: array subscript is above array bounds [-Warray-bounds] a[0][i][j]=INF; ~~~^ main.cpp:47:25: warning: array subscript is above array bounds [-Warray-bounds] if(a[n%2][i][j]!=r[i][j])